The Hochiki HSC-221R is a 6-inch conventional relay base for 2-wire fire alarm circuits. It runs on 24 VDC and provides two sets of Form “C” auxiliary relay contacts.
First, the base mounts a compatible Hochiki conventional detector head. Then on alarm, the integrated relays change state. As a result, you can switch auxiliary loads such as door holders or dampers.
How the Hochiki HSC-221R Operates
The relays are pigtail Form “C” voltage-free contacts. Specifically, contact ratings are 2 A at 30 VDC or 1 A at 120 VAC. Therefore, the relays can interface low-voltage auxiliary loads directly.
In addition, the base sits on a 4-inch octagonal or 4-inch square electrical box. Furthermore, the initiating circuit needs a listed end-of-line device for supervision.
Electrical Specifications
- Operating voltage: 24 VDC
- Alarm current: 49 mA (62 mA at 30.0 V max)
- Compatibility ID: HB-71
- Wiring: 2-wire
- Auxiliary relays: 2 sets of Form “C” pigtail contacts
- Relay contact ratings: 2 A @ 30 VDC, 1 A @ 120 VAC
- Base diameter: 6 inches
- Box mounting: 4-inch octagonal or 4-inch square
- Listings: UL Listed, CSFM 7300-0410-0132
Compatible Detector Heads
Also, the HSC-221R works with Hochiki conventional models SOC-24V, SOC-24VN, SLR-24H, SLR-24V, SLV-24, SLV-24N, SLV-24V, SLR-835, SLR-835H, and DCD-135/190. However, always verify panel compatibility before installation.
Order the Hochiki HSC-221R
Life Safety Consultants stocks the Hochiki HSC-221R alongside compatible detector heads and accessories. To order or confirm panel compatibility, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 1 × 6 × 6 in |
| Condition | New |
| Manufacturers | Hochiki |
| Part Type | Replacement Part |
